Toshiba Satellite C655 CPU compatibility

I am thinking of upgrading my Toshiba Satellite C655 with a faster CPU and am wondering if anyone can tell me which CPU's are compatible with this laptop? At this time it has a AMD V140 Processor 2.30ghz. The laptop is a Toshiba Satellite C655D-S50851. Thank you for any information you can give me.

As a general rule with laptops, CPU upgrades don't really give decent increases in performance. Increasing system memory to max allowed and installing a bigger faster hard drive will give you the most "bang for the buck"...